C99 compatibility fixes

Related to:

  <https://fedoraproject.org/wiki/Changes/PortingToModernC>
  <https://fedoraproject.org/wiki/Toolchain/PortingToModernC>

openpgm-c99.patch

@@ -0,0 +1,32 @@
+Include <grp.h> for the setgroups function.  This avoids an implicit
+function declaration and build failures with C99 compilers that do not
+support them.
+
+Submitted upstream: <https://github.com/steve-o/openpgm/pull/73>
+
+diff -ur openpgm-release-5-2-122.orig/openpgm/pgm/configure.ac openpgm-release-5-2-122/openpgm/pgm/configure.ac
+--- openpgm-release-5-2-122.orig/openpgm/pgm/configure.ac	2012-12-04 03:56:54.000000000 +0100
++++ openpgm-release-5-2-122/openpgm/pgm/configure.ac	2023-01-03 16:07:39.751560631 +0100
+@@ -62,7 +62,7 @@
+ 
+ # Checks for header files.
+ AC_FUNC_ALLOCA
+-AC_CHECK_HEADERS([arpa/inet.h fcntl.h float.h inttypes.h libintl.h limits.h locale.h malloc.h memory.h netdb.h netinet/in.h stddef.h stdint.h stdlib.h string.h strings.h sys/ioctl.h sys/param.h sys/socket.h sys/time.h sys/timeb.h syslog.h unistd.h wchar.h])
++AC_CHECK_HEADERS([arpa/inet.h fcntl.h float.h grp.h inttypes.h libintl.h limits.h locale.h malloc.h memory.h netdb.h netinet/in.h stddef.h stdint.h stdlib.h string.h strings.h sys/ioctl.h sys/param.h sys/socket.h sys/time.h sys/timeb.h syslog.h unistd.h wchar.h])
+ 
+ # Checks for typedefs, structures, and compiler characteristics.
+ AC_HEADER_STDBOOL
+diff -ur openpgm-release-5-2-122.orig/openpgm/pgm/engine.c openpgm-release-5-2-122/openpgm/pgm/engine.c
+--- openpgm-release-5-2-122.orig/openpgm/pgm/engine.c	2023-01-03 16:03:16.834181524 +0100
++++ openpgm-release-5-2-122/openpgm/pgm/engine.c	2023-01-03 16:08:05.458304376 +0100
+@@ -31,6 +31,10 @@
+ #	include <config.h>
+ #endif
+ 
++#ifdef HAVE_GRP_H
++#	include <grp.h>
++#endif
++
+ #ifndef _BSD_SOURCE
+ #	define _BSD_SOURCE	1	/* getprotobyname_r */
+ #endif

openpgm-configure-c99.patch

@@ -0,0 +1,18 @@
+Include <stdio.h> for the printf function.  This avoids an implicit
+function declaration in this configure check, causing to fail
+unconditionally with compilers that do not support them.
+
+Submitted upstream: <https://github.com/steve-o/openpgm/pull/73>
+
+diff -ur openpgm-release-5-2-122.orig/openpgm/pgm/configure.ac openpgm-release-5-2-122/openpgm/pgm/configure.ac
+--- openpgm-release-5-2-122.orig/openpgm/pgm/configure.ac	2012-12-04 03:56:54.000000000 +0100
++++ openpgm-release-5-2-122/openpgm/pgm/configure.ac	2023-01-03 16:07:39.751560631 +0100
+@@ -207,7 +207,7 @@
+ # sprintf, caveat http://savannah.gnu.org/patch/?6848 (ax_c_printf_thsep)
+ AC_MSG_CHECKING([for printf thousands' grouping])
+ AC_COMPILE_IFELSE(
+-	[AC_LANG_PROGRAM(,[[printf ("%'d", 1000000);]])],
++	[AC_LANG_PROGRAM([[#include <stdio.h>]],[[printf ("%'d", 1000000);]])],
+ 	[AC_MSG_RESULT([yes])
+ 		CFLAGS="$CFLAGS -DHAVE_SPRINTF_GROUPING"],
+ 	[AC_MSG_RESULT([no])])

openpgm.spec

@@ -20,6 +20,8 @@ Patch2:        openpgm-02-c-func.patch
 Patch3:        openpgm-03-pkgconfig.patch
 Patch4:        openpgm-04-py-version-gen.patch
 Patch5:        openpgm-05-fix-setgid.patch
+Patch6:        openpgm-configure-c99.patch
+Patch7:        openpgm-c99.patch
 
 BuildRequires: make
 BuildRequires: libtool automake autoconf
@@ -48,6 +50,8 @@ This package contains OpenPGM related development libraries and header files.
 %patch3 -p3
 %patch4 -p3
 %patch5 -p3
+%patch6 -p3
+%patch7 -p3
 dos2unix examples/getopt.c examples/getopt.h
 
 %build